.collapsible {
  border-top: 1px solid $collapsible-border-color;
  border-right: 1px solid $collapsible-border-color;
  border-left: 1px solid $collapsible-border-color;
  margin: $element-top-margin 0 $element-bottom-margin 0;
  @extend .z-depth-1;
}

.collapsible-header {
  display: flex;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  line-height: 1.5;
  padding: 1rem;
  background-color: $collapsible-header-color;
  border-bottom: 1px solid $collapsible-border-color;
  align-items: center;
  .content {
    flex-grow: 1;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    small{
      font-size: 88%;
      display: block;
      line-height: 1.5rem;
      color: $off-grey;
    }
  }
  i {
    width: 2rem;
    font-size: 1.6rem;
    display: inline-block;
    text-align: center;
    margin-right: 1rem;
    color: $off-black-light-1;
  }
}

.collapsible-body {
  display: none;
  border-bottom: 1px solid $collapsible-border-color;
  box-sizing: border-box;
  padding: 2rem;
}

// sideNav collapsible styling
.nil .side-nav,
.nil .side-nav.fixed {
  .collapsible {
    border: none;
    box-shadow: none;
    li {
      padding: 0;
    }
  }
  .collapsible-header {
    background-color: transparent;
    border: none;
    line-height: inherit;
    height: inherit;
    padding: 0 $sidenav-padding;
    &:hover {
      background-color: rgba(0, 0, 0, .05);
    }
    i {
      line-height: inherit;
    }
  }
  .collapsible-body {
    border: 0;
    background-color: $collapsible-header-color;
    li a {
      padding: 0 (7.5px + $sidenav-padding) 0 (15px + $sidenav-padding);
    }
  }
}

// Popout Collapsible
.collapsible.popout {
  border: none;
  box-shadow: none;
  > li {
    box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16),
      0 2px 10px 0 rgba(0, 0, 0, 0.12); // transform: scaleX(.92);
    margin: 0 24px;
    transition: margin .35s cubic-bezier(0.250, 0.460, 0.450, 0.940);
  }
  > li.active {
    box-shadow: 0 5px 11px 0 rgba(0, 0, 0, 0.18),
      0 4px 15px 0 rgba(0, 0, 0, 0.15);
    margin: 16px 0; // transform: scaleX(1);
  }
}
